This is where become a gamer’s best friend. Finding a full-fledged 3D action game or a deep RPG that fits in less space than a three-minute MP3 song seems impossible, but thanks to the magic of file compression (CSO, ZSO, and repacking), it is very real.
In an era where mobile games routinely eat up gigabytes of storage, there’s something almost magical about squeezing a full PlayStation Portable experience into less than 100 megabytes. Thanks to dedicated compression wizards and file-ripping communities, a surprising number of PSP titles have been shrunk down to bite-sized downloads—perfect for retro handhelds, low-end Android emulators, or PCs with limited space. --- Psp Games Highly Compressed Under 100mb